Improvement of Landing page

Javascript and Typescript, Web Programming — incorrectly specified categories?

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The landing page of the site needs to be improved.
Add a couple of pages.
Fix the forms for filling out.
More details in the link:
https://docs.google.com/document/d/1eZ_Cey3offpHnVd8Wf6xdcdhbiox6bMrR2QNjEUIynA/edit?usp=sharing
please write the cost.